UNITY REST API Performance metrics

Hello EMC experts,

I've been using the REST API to collect pool, and lun capacity info. Now I'd like to collect some performance stats but I'm not understanding enough from the API doc to get any useful metrics from the API. I think it may be that collecting performance metrics is a two step process where a query is created the query results later retrieved.

Could anyone please share any working code where performance stats are retrieved using the API?